CN106329744A - Motor structure based on transverse H-shaped sectional ventilating channel steel - Google Patents

Motor structure based on transverse H-shaped sectional ventilating channel steel Download PDF

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Publication number
CN106329744A
CN106329744A CN201610756445.1A CN201610756445A CN106329744A CN 106329744 A CN106329744 A CN 106329744A CN 201610756445 A CN201610756445 A CN 201610756445A CN 106329744 A CN106329744 A CN 106329744A
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CN
China
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steel
channel
stator
ventilation
shaped
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CN201610756445.1A
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Chinese (zh)
Inventor
曹君慈
李伟力
张晓晨
李栋
陈思
吴志刚
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北京交通大学
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Priority to CN201610756445.1A priority Critical patent/CN106329744A/en
Publication of CN106329744A publication Critical patent/CN106329744A/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/20Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/15Sectional machines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The invention provides a motor structure based on transverse H-shaped sectional ventilating channel steel. The motor structure mainly comprises sectional stator cores, radial ventilating ducts and ventilating channel steel, wherein the sectional stator cores are distributed in the axial direction of the motor, the radial ventilating ducts are arranged between the adjacent sectional stator cores, and the radial ventilating ducts are composed of the transverse H-shaped sectional ventilating channel steel distributed on the circumference. The sectional stator core comprises stator teeth and stator slots, the stator teeth and the stator slots of the adjacent sectional stator cores correspond one to one in the axial direction, a winding is placed in the stator slots, and the ventilating channel steel is installed among the stator teeth of the adjacent sectional stator cores. The transverse H-shaped sectional ventilating channel steel is high in mechanical property, reduces the manufacturing cost, improves the smoothness of ventilating walls, and effectively reduces the wind abrasion loss in the ventilating ducts; by changing the quantity of channel steel, the flowing direction of cooling gas can be changed, and the eddy current loss at the tail of a stator coil is effectively reduced, so that the heat dissipation efficiency of the motor is improved by about 10%.

Description

Electric machine structure based on I-shaped cross-section ventilation steel channel

Technical field

The present invention relates to technical field of motors, particularly relate to a kind of electric machine structure based on I-shaped cross-section ventilation steel channel.

Background technology

For using the large and middle size motor of radial ventilation system, Radial ventilation duct is mainly passed through in the loss of motor stator portion Cooling air flowing outwards heat radiation.But, when cooling down gas by Radial ventilation duct, owing to wind path cross section narrows suddenly, stream Speed becomes big;When cooling down gas and flowing out from stator bar afterbody, due to gas and the stator bar afterbody of stator bar both sides Gas flow rate differs greatly, and causes stator coil afterbody to form eddy current, and the wind speed of eddy current middle part is minimum, has a strong impact on stator The heat radiation of coil afterbody.If the aeration structure design of motor is unreasonable, cause motor local temperature rise too high or uneven, seriously Affect the service life of motor.

In motor radial ventilation system, ventilation steel channel typically uses linear type, V-type and many replicated structures.Chinese patent Number it is a kind of linear type stator ventilation steel channel described in 201220141957.4, although simple in construction, but stator can not be changed Airflow direction in Radial ventilation duct, stator coil afterbody eddy-current loss is big;China Patent No. is described in 201520770017.5 V-type stator ventilation steel channel, although can change stator wind path flow to, but there is wind path and flow to unbalanced, the overall temperature of stator Spend higher;The ventilation steel channel of the many replicated structures described in China Patent No. 201410835452.1, due to its replicated structures, its knot Structure is rough, and cooling gas is relatively big in air duct endogenous wind abrasive wear, and radiating effect is the best.It addition, either linear type channel-section steel, V Type channel-section steel or the ventilation steel channel of many replicated structures, cross section is square, and square ventilation steel channel mechanical performance is poor, and air duct Interior windmill loss is relatively big, is unfavorable for stationary part ventilation and heat.

Therefore, in the urgent need to providing a kind of stationary part to motor to carry out the scheme of available ventilation heat radiation.

Summary of the invention

The embodiment provides a kind of stretchable friction-type energy collecting device and preparation method thereof, to provide one Plant and can change the stator ventilation steel channel that wind path flows to, can reduce again windmill loss.

The invention provides following scheme:

A kind of electric machine structure based on I-shaped cross-section ventilation steel channel, Radial ventilation duct unshakable in one's determination including: sectionalized stator and logical Wind channel-section steel, the described sectionalized stator axial distribution along motor unshakable in one's determination, described Radial ventilation duct is arranged on adjacent sectionalized stator ferrum Between the heart, described Radial ventilation duct is made up of the ventilation steel channel of circumferential I-shaped cross-section.

Further, described sectionalized stator iron core includes stator tooth and stator slot, the stator that adjacent sectionalized stator is unshakable in one's determination Tooth and stator slot one_to_one corresponding in the axial direction, is placed with winding in described stator slot, described ventilation steel channel is arranged on adjacent dividing Between the stator tooth of section stator core.

Further, the unshakable in one's determination hop count n of described sectionalized stator is determined by the external diameter that sectionalized stator is unshakable in one's determination, for n=D/55~ D/50, D are the external diameter that sectionalized stator is unshakable in one's determination, the axial width L of described Radial ventilation ductdThe outer diameter D unshakable in one's determination with sectionalized stator with Axial length LfeRelevant, Ld=(0.1D+0.3Lfe)/55~(0.2D+0.1Lfe)/35。

Further, the width of described I-shaped cross-section is L5, its size and stator facewidth btRelevant, for L5=bt/ 3~ bt/2;The a width of L of sole of described ventilation steel channel1, its size and stator facewidth btRelevant, for L1=bt/ 3~bt/2;Described ventilation The sole thickness L of channel-section steel3Axial width L with described Radial ventilation ductdRelevant, for L3=Ld/ 10~Ld/7;Described ventilation steel channel Web width L4, its size and channel-section steel sole width L1Relevant, for L4=L1/ 3~L1/2;The thickness of described ventilation steel channel is L2, its Size and air duct axial width LdRelevant, for L2=Ld;Described I-shaped angle beta and the sole width L of described ventilation steel channel1And The thickness L of described ventilation steel channel2Relevant, forThe most I-shaped angle beta is described ventilation slot Angle between I-shaped cross-section horizontal edge and the hypotenuse of steel.

Further, arranging two ventilation steel channels between the stator tooth that adjacent sectionalized stator is unshakable in one's determination, one is elongated slot Steel, a length of Ls1=0.13 (D-2hs)~0.18 (D-2hs), another root is short channel-section steel, a length of Ls2=0.09 (D-2hs)~ 0.11(D-2hs), in channel-section steel proximal ends, two channel-section steel distance Edge Distances unshakable in one's determination are ht, a length of 7mm~10mm, wherein elongated slot Steel center and nearside tooth back gauge bt13With short channel-section steel center and nearside tooth back gauge bt11Equal, and and two channel-section steel centers between Distance bt12Equal, i.e. bt11=bt12=bt13=1/3bt

Further, described long channel-section steel and short channel-section steel are circumferentially in regularity distribution, and adjacent three stator tooths are corresponding Channel-section steel is one group, and the channel-section steel mounting means of any one group is followed successively by " long channel-section steel ", " short channel-section steel ", " elongated slot in the direction of the clock Steel ", " short channel-section steel ", " short channel-section steel ", " long channel-section steel ".

Further, three ventilation steel channels of long, medium and short are set between the stator tooth that adjacent sectionalized stator is unshakable in one's determination, its The a length of L of middle long channel-section steels1=0.13 (D-2hs)~0.18 (D-2hs), a length of L of short channel-section steels2=0.09 (D-2hs)~ 0.11(D-2hs), length L of middle channel-section steels3=0.1 (D-2hs)~0.15 (D-2hs), in channel-section steel proximal ends, channel-section steel distance is unshakable in one's determination Edge Distance is ht, a length of 7mm~10mm, long channel-section steel center and nearside tooth back gauge bt24With short channel-section steel center With nearside tooth back gauge bt21Equal, i.e. bt21+bt24=0.4bt, middle channel-section steel centre distance long channel-section steel centre distance bt23With distance Centre distance b of short channel-section steelt22Equal, i.e. bt22+bt23=0.6bt

Further, described long channel-section steel, middle channel-section steel and short channel-section steel circumferentially in regularity distribution, adjacent three stator tooths Corresponding channel-section steel is one group, channel-section steel mounting means of any one group be followed successively by the direction of the clock " long channel-section steel ", " middle channel-section steel ", " short channel-section steel ", " long channel-section steel ", " channel-section steel ", " short channel-section steel ", " short channel-section steel ", " middle channel-section steel ", " long channel-section steel ".

The technical scheme that thered is provided by embodiments of the invention described above is it can be seen that the I-shaped cross-section of the embodiment of the present invention The mechanical performance of ventilation steel channel is high, saves manufacturing cost, improves the slickness of ventilating duct wall, effectively reduces the abrasion of air duct endogenous wind Consumption, by changing channel-section steel quantity, thus it is possible to vary cooling gas flow direction, effectively reduces stator coil afterbody eddy-current loss, makes Motor radiating efficiency increases about 10%.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, required use in embodiment being described below Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for this From the point of view of the those of ordinary skill of field, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings Accompanying drawing.

The aeration structure schematic diagram of a kind of electric machine stator iron that Fig. 1 provides for the embodiment of the present invention;

A kind of motor stator Radial ventilation duct schematic enlarged-scale view that Fig. 2 provides for the embodiment of the present invention;

A kind of I-shaped cross-section channel-section steel structure chart that Fig. 3 provides for the embodiment of the present invention, wherein Fig. 3 a is I-shaped cross-section Channel-section steel overall structure schematic diagram, Fig. 3 b is its top view;

Fig. 4 installs the short different channel-section steel partial enlarged drawings of two root lengths for a kind of stator between cog that the embodiment of the present invention provides;

Part A enlarged drawing in a kind of Fig. 4 that Fig. 5 provides for the embodiment of the present invention;

Fig. 6 installs the short different channel-section steel partial enlarged drawings of three root lengths for a kind of stator between cog that the embodiment of the present invention provides;

Part A enlarged drawing in a kind of Fig. 6 that Fig. 7 provides for the embodiment of the present invention.

Detailed description of the invention

Embodiments of the present invention are described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " ", " Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that use in the description of the present invention arranges Diction " including " refers to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or adds Other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim unit Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist Intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Wording used herein "and/or" includes one or more any cell listing item being associated and all combinations.

Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art Language and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should Being understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art The meaning that justice is consistent, and unless defined as here, will not explain by idealization or the most formal implication.

For ease of the understanding to the embodiment of the present invention, do as a example by several specific embodiments further below in conjunction with accompanying drawing Explanation, and each embodiment is not intended that the restriction to the embodiment of the present invention.

The parameter of electric machine that the present embodiment relates to: frame diameter D=555mm, Lfe=270mm, stator facewidth bt= 10.5mm, stator tooth depth hs=42mm.

The aeration structure schematic diagram of a kind of electric machine stator iron that the embodiment of the present invention provides is as it is shown in figure 1, motor uses I-shaped cross-section channel-section steel and location mode, mainly include sectionalized stator (1) unshakable in one's determination, Radial ventilation duct (2) and ventilation steel channel (3), Wherein, sectionalized stator (1) unshakable in one's determination is axially distributed, and its hop count n is determined by the external diameter of stator core (1), for n=D/55~D/ 50, D is electric machine stator iron external diameter.Adjacent sectionalized stator is Radial ventilation duct (2) between (1) unshakable in one's determination, Radial ventilation duct (2) Formed by circumferential ventilation steel channel (3), the axial width L of Radial ventilation duct (2)dWith electric machine stator iron outer diameter D with Axial length LfeRelevant, Ld=(0.1D+0.3Lfe)/55~(0.2D+0.1Lfe)/35, stator core (1) includes stator tooth (4) With stator slot (5), the stator tooth (4) of adjacent sectionalized stator (1) unshakable in one's determination and stator slot (5) one_to_one corresponding in the axial direction, stator Groove is placed with winding in (5).

The enlarged drawing of a kind of motor stator radial ventilation groove structure that the embodiment of the present invention provides is as in figure 2 it is shown, ventilation slot Steel (3) is arranged between the stator tooth (4) of adjacent sectional stator core (1), through optimizing design, can obtain segmentation stator core Hop count n=10~11, preferably 10, the axial length L of Radial ventilation ductd=2.5mm~4mm, preferably 3.5mm.

Existing motor stator ventilation steel channel is generally common I-shaped cross-section channel-section steel, and ventilation effect is the best, and does not fill Dividing the guide functions considering channel-section steel to cooling gas, the embodiment of the present invention is optimized design to I-shaped channel-section steel, and Fig. 3 is this A kind of I-shaped cross-section channel-section steel structure chart that bright embodiment provides, wherein Fig. 3 a is I-shaped cross-section channel-section steel overall structure signal Figure, Fig. 3 b is the sectional view of channel-section steel.Channel-section steel width is L5(as shown in Figure 3 a), its size and stator facewidth btRelevant, through optimizing Design, L5=bt/ 3~bt/ 2, i.e. L5=3.5mm~5.25mm, preferably 4.5mm.Channel cross-section is that I-shape construction is (such as Fig. 3 b Shown in), channel-section steel sole width L1, its size and stator facewidth btRelevant, through optimizing design, L1=bt/ 3~bt/ 2, i.e. L1= 3.5mm~5.25mm, preferably 4.5mm, channel-section steel sole thickness L3With air duct axial width LdRelevant, through optimizing design, L3= Ld/ 10~Ld/ 7, i.e. L3=0.35mm~0.5mm, preferably 0.4mm.Channel-section steel web width L4, its size and channel-section steel sole width L1Have Close, for L4=L1/ 3~L1/ 2, i.e. L4=1.5mm~2.25mm, ensures again the mechanicalness of I shape channel-section steel to save material Can, L4It is preferably 2mm.Channel-section steel thickness is L2, its size and air duct axial width LdRelevant, i.e. L2=Ld, then L2=3.5mm. I-shaped angle beta and channel-section steel sole width L1And channel-section steel thickness L2Relevant, according to optimizing design,Then β=17.3 °~46 °, in order to reduce ventilating duct endogenous wind abrasive wear, β is preferably 32 °, The most I-shaped angle beta is the angle between channel-section steel I-shaped cross-section horizontal edge and hypotenuse, and this structure not only adds channel-section steel machinery Performance, and reduce air duct windmill loss 10%.

In order to improve the water conservancy diversion effect of ventilation steel channel (3), the channel-section steel quantitative design of each stator between cog is become two, this A kind of stator between cog that bright embodiment provides installs the short different channel-section steel partial enlarged drawings of two root lengths as shown in Figure 4, and a channel-section steel sets Meter growth channel-section steel, a length of Ls1=0.13 (D-2hs)~0.18 (D-2hs), another root channel-section steel is designed to short channel-section steel, a length of Ls2 =0.09 (D-2hs)~0.11 (D-2hs), then Ls1=61.23mm~84.78mm, preferably 73mm, Ls2=42.39mm~ 51.81mm, preferably 47mm.Described channel-section steel be installed on two stator tooths axially between air duct in, each tooth is laid two Channel-section steel, the respectively one long channel-section steel of above-mentioned 73mm and a short channel-section steel of above-mentioned 37mm.Fig. 5 is the amplification of part A in Fig. 4 Figure, in channel-section steel proximal ends, channel-section steel distance Edge Distance unshakable in one's determination is ht, a length of 7mm~10mm, preferably 9mm.Wherein 73mm elongated slot Steel center and nearside tooth back gauge (b in Fig. 5t13) with 37mm short channel-section steel center and nearside tooth back gauge (b in Fig. 5t11) equal, and And distance b between two channel-section steel centerst12Equal, i.e. bt11=bt12=bt13=1/3bt.On the whole, long channel-section steel and short channel-section steel exist In regularity distribution on circumference, the channel-section steel that adjacent three stator tooths are corresponding is one group, and the channel-section steel mounting means of any one group is pressed It is followed successively by " the long channel-section steel of 73mm ", " the short channel-section steel of 37mm ", " the long channel-section steel of 73mm ", " the short channel-section steel of 37mm ", " the short groove of 37mm clockwise Steel ", " the long channel-section steel of 73mm ", as shown in Figure 4 above.

In order to effectively reduce coil afterbody eddy-current loss, by the channel-section steel quantity of each stator between cog it can also be designed long, in, Short three, as shown in Figure 6.Channel-section steel in designing on the basis of original long channel-section steel and short channel-section steel, middle channel-section steel straight length Ls3With motor Stator outer diameter D and stator slot height hsRelevant, for Ls3=0.1 (D-2hs)~0.15 (D-2hs), i.e. Ls3=47.1mm~ 70.65mm, preferably 59mm.Channel-section steel be installed on two stator tooths axially between air duct in, each tooth is laid three channel-section steels, It is respectively the long channel-section steel of an above-mentioned 73mm, the middle channel-section steel of an above-mentioned 59mm and the short channel-section steel of an above-mentioned 37mm.Fig. 7 is figure The enlarged drawing of part B in 6, three channel-section steels are represented by a, b and c respectively.In channel-section steel proximal ends, channel-section steel distance Edge Distance unshakable in one's determination is ht, a length of 7mm~10mm, preferably 8.5mm.A channel-section steel center and nearside tooth back gauge (b in Fig. 7t24) and c channel-section steel center Position and nearside tooth back gauge (b in Fig. 7t21) equal, i.e. bt21+bt24=0.4bt, b channel-section steel centre distance a channel-section steel centre distance (b in Fig. 7t23) with the centre distance of distance c channel-section steel (b in Fig. 7t22) equal, i.e. bt22+bt23=0.6bt.On the whole, long channel-section steel, Middle channel-section steel and short channel-section steel are circumferentially in regularity distribution, and the channel-section steel that adjacent three stator tooths are corresponding is one group, any one group Channel-section steel mounting means be followed successively by " the long channel-section steel of 73mm ", " channel-section steel in 59mm ", " the short channel-section steel of 37mm ", " 73mm in the direction of the clock Long channel-section steel ", " channel-section steel in 59mm ", " the short channel-section steel of 37mm ", " the short channel-section steel of 37mm ", " channel-section steel in 59mm ", " the long channel-section steel of 73mm ", as above State shown in Fig. 6.The program compared with two channel-section steels in air duct wind speed have increased slightly, stator coil afterbody eddy current is obviously reduced, But cost increased.

In sum, the mechanical performance of the ventilation steel channel of the I-shaped cross-section of the embodiment of the present invention is high, saves manufacturing cost, Improve the slickness of ventilating duct wall, effectively reduce air duct endogenous wind abrasive wear, by changing channel-section steel quantity, thus it is possible to vary cooling gas Body flow direction, effectively reduces stator coil afterbody eddy-current loss, makes motor radiating efficiency increase about 10%.

The embodiment of the present invention is distributed by the quantity and length changing stator between cog ventilation steel channel, can effectively change ventilation Cooling gas flow direction in ditch, reduces stator coil afterbody eddy-current loss.The present invention solves the heat radiation of existing motor stator Weak effect, the problem that stator coil afterbody local temperature rise is too high.

One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, module in accompanying drawing or Flow process is not necessarily implemented necessary to the present invention.

Each embodiment in this specification all uses the mode gone forward one by one to describe, identical similar portion between each embodiment Dividing and see mutually, what each embodiment stressed is the difference with other embodiments.Especially for device or For system embodiment, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part sees method The part of embodiment illustrates.Apparatus and system embodiment described above is only schematically, wherein said conduct The unit of separating component explanation can be or may not be physically separate, the parts shown as unit can be or Person may not be physical location, i.e. may be located at a place, or can also be distributed on multiple NE.Can root Factually border need select some or all of module therein to realize the purpose of the present embodiment scheme.Ordinary skill Personnel, in the case of not paying creative work, are i.e. appreciated that and implement.

The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, All should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims It is as the criterion.

Claims (8)

1. an electric machine structure based on I-shaped cross-section ventilation steel channel, it is characterised in that including: sectionalized stator is unshakable in one's determination, radially Air duct and ventilation steel channel, the described sectionalized stator axial distribution along motor unshakable in one's determination, described Radial ventilation duct is arranged on adjacent Between sectionalized stator iron core, described Radial ventilation duct is made up of the ventilation steel channel of circumferential I-shaped cross-section.
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 1, it is characterised in that described segmentation Stator core includes stator tooth and stator slot, the stator tooth of adjacent sectionalized stator iron core and stator slot one a pair in the axial direction Should, it being placed with winding in described stator slot, described ventilation steel channel is arranged between the stator tooth that adjacent sectionalized stator is unshakable in one's determination.
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 1, it is characterised in that described segmentation The hop count n of stator core is determined by the external diameter that sectionalized stator is unshakable in one's determination, is outside sectionalized stator iron core for n=D/55~D/50, D Footpath, the axial width L of described Radial ventilation ductdThe outer diameter D unshakable in one's determination with sectionalized stator and axial length LfeRelevant, Ld=(0.1D+ 0.3Lfe)/55~(0.2D+0.1Lfe)/35。
4. according to the electric machine structure based on I-shaped cross-section ventilation steel channel described in claim 1 or 2 or 3, it is characterised in that institute The width stating I-shaped cross-section is L5, its size and stator facewidth btRelevant, for L5=bt/ 3~bt/2;The foot of described ventilation steel channel The a width of L of plate1, its size and stator facewidth btRelevant, for L1=bt/ 3~bt/2;The sole thickness L of described ventilation steel channel3With described The axial width L of Radial ventilation ductdRelevant, for L3=Ld/ 10~Ld/7;The web width L of described ventilation steel channel4, its size and groove Steel sole width L1Relevant, for L4=L1/ 3~L1/2;The thickness of described ventilation steel channel is L2, its size and air duct axial width Ld Relevant, for L2=Ld;Described I-shaped angle beta and the sole width L of described ventilation steel channel1And the thickness L of described ventilation steel channel2Have Close, forThe most I-shaped angle beta be described ventilation steel channel I-shaped cross-section horizontal edge with Angle between hypotenuse.
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 4, it is characterised in that adjacent Arranging two ventilation steel channels between the stator tooth that sectionalized stator is unshakable in one's determination, one is long channel-section steel, a length of Ls1=0.13 (D-2hs)~ 0.18(D-2hs), another root is short channel-section steel, a length of Ls2=0.09 (D-2hs)~0.11 (D-2hs), in channel-section steel proximal ends, two Root channel-section steel distance Edge Distance unshakable in one's determination is ht, a length of 7mm~10mm, the longest channel-section steel center and nearside tooth back gauge bt13With Short channel-section steel center and nearside tooth back gauge bt11Equal, and and two channel-section steel centers between distance bt12Equal, i.e. bt11=bt12= bt13=1/3bt
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 5, it is characterised in that described elongated slot Steel and short channel-section steel are circumferentially in regularity distribution, and the channel-section steel that adjacent three stator tooths are corresponding is one group, the groove of any one group Steel mounting means is followed successively by " long channel-section steel ", " short channel-section steel ", " long channel-section steel ", " short channel-section steel ", " short channel-section steel ", " length in the direction of the clock Channel-section steel ".
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 4, it is characterised in that adjacent Between the stator tooth that sectionalized stator is unshakable in one's determination, three ventilation steel channels of long, medium and short, a length of L of the longest channel-section steel are sets1=0.13 (D-2hs)~0.18 (D-2hs), a length of L of short channel-section steels2=0.09 (D-2hs)~0.11 (D-2hs), length L of middle channel-section steels3 =0.1 (D-2hs)~0.15 (D-2hs), in channel-section steel proximal ends, channel-section steel distance Edge Distance unshakable in one's determination is ht, a length of 7mm~ 10mm, long channel-section steel center and nearside tooth back gauge bt24With short channel-section steel center and nearside tooth back gauge bt21Equal, i.e. bt21+bt24=0.4bt, middle channel-section steel centre distance long channel-section steel centre distance bt23With centre distance b apart from short channel-section steelt22It is equal, I.e. bt22+bt23=0.6bt
Electric machine structure based on I-shaped cross-section ventilation steel channel the most according to claim 7, it is characterised in that described elongated slot Steel, middle channel-section steel and short channel-section steel are circumferentially in regularity distribution, and the channel-section steel that adjacent three stator tooths are corresponding is one group, any one Group channel-section steel mounting means be followed successively by the direction of the clock " long channel-section steel ", " middle channel-section steel ", " short channel-section steel ", " long channel-section steel ", " channel-section steel ", " short channel-section steel ", " short channel-section steel ", " middle channel-section steel ", " long channel-section steel ".
CN201610756445.1A 2016-08-29 2016-08-29 Motor structure based on transverse H-shaped sectional ventilating channel steel CN106329744A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
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CN201750241U (en) * 2010-07-05 2011-02-16 上海电气集团上海电机厂有限公司 Air duct structure of motor iron core
CN102361382A (en) * 2011-10-26 2012-02-22 中电电机股份有限公司 Stator air duct and rotor air duct structure of bipolar motor
CN204559256U (en) * 2015-03-05 2015-08-12 哈尔滨电机厂有限责任公司 A kind of novel gas flow parts
CN204669165U (en) * 2015-06-17 2015-09-23 北京金风科创风电设备有限公司 Motor radial ventilation cooling structure
CN205335993U (en) * 2016-02-02 2016-06-22 哈尔滨理工大学 Air cooling aerogenerator's stator core and rotor core structure
WO2016125534A1 (en) * 2015-02-06 2016-08-11 株式会社日立製作所 Rotating electric machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101651378A (en) * 2008-08-12 2010-02-17 通用电气公司 Stator and method of making the same
CN201750241U (en) * 2010-07-05 2011-02-16 上海电气集团上海电机厂有限公司 Air duct structure of motor iron core
CN102361382A (en) * 2011-10-26 2012-02-22 中电电机股份有限公司 Stator air duct and rotor air duct structure of bipolar motor
WO2016125534A1 (en) * 2015-02-06 2016-08-11 株式会社日立製作所 Rotating electric machine
CN204559256U (en) * 2015-03-05 2015-08-12 哈尔滨电机厂有限责任公司 A kind of novel gas flow parts
CN204669165U (en) * 2015-06-17 2015-09-23 北京金风科创风电设备有限公司 Motor radial ventilation cooling structure
CN205335993U (en) * 2016-02-02 2016-06-22 哈尔滨理工大学 Air cooling aerogenerator's stator core and rotor core structure

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Application publication date: 20170111